Fraction Calculator

Fraction Calculator Tool Introduction

A web-based calculator that supports the four basic operations (addition, subtraction, multiplication, and division) on fractions. The calculator automatically simplifies the result to its lowest terms and displays the result in either fraction or integer form.

How to Use the Fraction Calculator

1. Enter Fractions
In the input fields for "Fraction 1" and "Fraction 2", enter the numerator and denominator respectively:
Numerator input field: Enter the top number of the fraction
Denominator input field: Enter the bottom number of the fraction (cannot be 0)

2. Select Operation
Click the operation dropdown menu to choose one of the four operations:
Addition (+)
Subtraction (-)
Multiplication (×)
Division (÷)

3. Calculate
You can calculate in the following ways:
Click the "Calculate" button
Press the Enter key in any input field

4. View Result
The calculation result will be displayed in the "Result" box at the bottom, in one of the following formats:
Fraction format (e.g., 3/4)
Integer format (e.g., 2)

5. Use Examples
Click the "Example" button, and the system will randomly fill in a set of example fractions and operations. You can:
Click "Calculate" directly to view the result
Modify the example data to perform other calculations

Supported Calculation Rules

Addition: a/b + c/d = (ad + bc)/bd

Subtraction: a/b - c/d = (ad - bc)/bd

Multiplication: a/b × c/d = ac/bd

Division: a/b ÷ c/d = ad/bc

Notes

The denominator cannot be 0; otherwise, an error will be displayed.

In division, the numerator of the second fraction also cannot be 0.

Inputs must be integers (positive or negative).

Results are automatically simplified; for example, 4/8 will be displayed as 1/2.

If the result is an integer (e.g., 4/1), it will be displayed directly as 4.